OPTIMISATION OF NMR COILS BY GENETIC ALGORITHMS
Peter Andris, Ivan Frollo · 2002
Several variants of genetic algorithms are tested assuming their use for magnetic field homogeneity of an NMR coil optimisation. A new genetic operator of modified elitism has been developed basing on results of the tests. Magnetic field of an RF coil is calculated, results of the calculation are verified by measuring and genetic algorithm with the new genetic operator is applied on magnetic field homogeneity optimisation. The optimisation of the coil with genetic algorithms is compared to optimisation by randomised deterministic optimisation method and their qualities are discussed. The optima calculated by the both optimisation methods are depicted with contour plots in order to prove importance of the optimisation.